boeing was forced to ground all 50, 787 dream liners for three months because of problem with lithium batteries. 42,000 phones have the faulty battery but is not taking any chances. samsung released a statement saying it is cooperating with the recall and stopped all introducing new k-y touch gel cr?me. for massage and intimacy. every touch, gently intensified. >>> the terror attacks of september 11th are burned into the memory of most americans. 2,606 people were killed at the world trade center alone. among the dead, 343 firefighters. 60 police officers. and eight paramedics. now, 15 years later, there has been a rebirth in lower martha tischner takes us there. >> reporter: are they the tears of a nation weeping? or a soothing rain forever trying to wash away the horror of what happened here? this is where the twin towers stood. look down, you cannot see the and you cannot come here and forget for a moment that achingly perfect blue sky morning september 11th, 2001. >> another one. another plane just hit. >> oh, my god. >> reporter: when the planes hit. when the towers fell. when ne